中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Age-related changes in photosynthesis and water relations of revegetated Caragana korshinskii in the Tengger desert, Northern China

文献类型:期刊论文

作者Bao, Jing-Ting1,2,3; Wang, Jin1; Li, Xin-Rong1; Zhang, Zhi-Shan1; Su, Jie-Qiong1
刊名TREES-STRUCTURE AND FUNCTION
出版日期2015-12-01
卷号29期号:6页码:1749-1760
关键词Revegetated shrubs Photosynthesis Water relations Age-related changes Caragana korshinskii
ISSN号0931-1890
DOI10.1007/s00468-015-1255-7
通讯作者Li, Xin-Rong(lxinrong@lzb.ac.cn)
英文摘要Age-related declines in photosynthesis and water potentials of revegetated Caragana korshinskii in arid desert regions are likely related to both reduced soil water availability and increased hydraulic resistance in xylem. In addition to soil water depletion, the degradation of revegetated sand-binding shrubs may be attributed to specific biological traits of the plant itself, such as aging. To improve our understanding of the physiological basis of observed age-related changes in photosynthetic capacity and water relations in drought-stressed xerophytic shrubs, we conducted in situ field experiments on juvenile, young-mature and relatively old-growth Caragana korshinskii Kom. during the 2013 growing season. Our results revealed significant age-related changes in gas exchange and water-use characteristics, including decreases in the rates of photosynthesis and transpiration, stomatal conductance, shoot water potential and leaf relative water content and increase in water use efficiency with increasing age. We also found that the gas exchange and water relations of all three age classes of C. korshinskii were similarly and significantly affected by soil and atmospheric water availabilities. We conclude that the age-related changes in photosynthetic capacity and water relations which occur in C. korshinskii are likely related to reduced soil water availability and increased hydraulic resistance in xylem, both of which result in a decline in water potential, stomatal conductance and photosynthetic capacity with increasing age of the shrub.
收录类别SCI
WOS关键词LEAF GAS-EXCHANGE ; COOCCURRING MEDITERRANEAN OAKS ; USE EFFICIENCY ; SOIL-WATER ; HYDRAULIC CONDUCTANCE ; STOMATAL CONDUCTANCE ; SEASONAL PATTERNS ; PERENNIAL PLANTS ; PINUS-CONTORTA ; QUERCUS-RUBRA
WOS研究方向Forestry
WOS类目Forestry
语种英语
WOS记录号WOS:000365711700010
出版者SPRINGER HEIDELBERG
URI标识http://www.irgrid.ac.cn/handle/1471x/2557174
专题寒区旱区环境与工程研究所
通讯作者Li, Xin-Rong
作者单位1.Chinese Acad Sci, Shapotou Desert Expt & Res Stn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China
2.Lanzhou Univ Technol, Sch Life Sci & Engn, Lanzhou 730050, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Bao, Jing-Ting,Wang, Jin,Li, Xin-Rong,et al. Age-related changes in photosynthesis and water relations of revegetated Caragana korshinskii in the Tengger desert, Northern China[J]. TREES-STRUCTURE AND FUNCTION,2015,29(6):1749-1760.
APA Bao, Jing-Ting,Wang, Jin,Li, Xin-Rong,Zhang, Zhi-Shan,&Su, Jie-Qiong.(2015).Age-related changes in photosynthesis and water relations of revegetated Caragana korshinskii in the Tengger desert, Northern China.TREES-STRUCTURE AND FUNCTION,29(6),1749-1760.
MLA Bao, Jing-Ting,et al."Age-related changes in photosynthesis and water relations of revegetated Caragana korshinskii in the Tengger desert, Northern China".TREES-STRUCTURE AND FUNCTION 29.6(2015):1749-1760.

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